CN102714008A - Drive device and method for a plasma display panel - Google Patents
Drive device and method for a plasma display panel Download PDFInfo
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- CN102714008A CN102714008A CN201080061101XA CN201080061101A CN102714008A CN 102714008 A CN102714008 A CN 102714008A CN 201080061101X A CN201080061101X A CN 201080061101XA CN 201080061101 A CN201080061101 A CN 201080061101A CN 102714008 A CN102714008 A CN 102714008A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/28—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels
- G09G3/288—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels
- G09G3/291—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/28—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels
- G09G3/288—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels
- G09G3/291—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes
- G09G3/293—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels using AC panels controlling the gas discharge to control a cell condition, e.g. by means of specific pulse shapes for address discharge
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0202—Addressing of scan or signal lines
- G09G2310/0213—Addressing of scan or signal lines controlling the sequence of the scanning lines with respect to the patterns to be displayed, e.g. to save power
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0224—Details of interlacing
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
Abstract
The present invention provides a drive device for a plasma display panel comprising a plurality of scan electrodes and a plurality of address electrodes disposed in an array and to a method for the same, wherein the drive device for a plasma display panel comprises: a first calculation unit which computes the number of switchings of the address electrodes when the plurality of scan electrodes are to be scanned using the progressive scanning mode; a second calculation unit which computes the number of switchings of the address electrodes when the plurality of scan electrodes are to be scanned using the interlaced scanning mode; and a comparison unit which compares the number of switchings computed in the first calculation unit and the number of switchings computed in the second calculation unit, and sets either the progressive scanning mode or the interlaced scanning mode, whichever involves the smaller number of switchings.
Description
Technical field
Embodiment is relevant plasma display panel driving apparatus and method.
Background technology
Plasma display is when exciting the ultraviolet fluorescent body that produces through gas discharge, utilizes from the device of the visible rays display image of fluorophor generation.Such PDP is the structure that is generally upper substrate and lower basal plate encapsulation.
Fig. 1 is the pie graph of existing PDP.With reference to figure 1, the upper substrate of above-mentioned PDP possesses scan electrode Y1 ~ Yn and support electrode Z is arranged, and lower basal plate possesses addressing electrode X1 ~ Xm is arranged.In addition, the position of above-mentioned scan electrode and support electrode intersection possesses discharge cell 1.
Fig. 2 is the reference diagram of the principle of expression plasma display display image.With reference to figure 1 and Fig. 2, PDP selects a frame to be divided into the time-division driving method of the different many sub-section of number of light emission times for the gray scale of display image.Each son section is divided into the period that resets of evenly evoking in order to discharge, for addressing period and the keeping the period according to the existing gray scale of discharge time tool of selecting discharge cell.Giving an example, is example with the situation of 256 gray scale presentation videos, and 1/60 second corresponding frame generates the period (16.67ms) and can be divided into 8 sub-section.Simultaneously, 8 sub-section SF1, SF2 ..., SF8 is that kind as shown in Figure 2 respectively, and each is divided into the period that resets, addressing period and the period of keeping again again.Here, reset period and the addressing period of each son section are identical in each son section.
In addition, being used to select the address discharge of discharge cell is through addressing electrode X1, X2 ..., Xm and scan electrode Y1, Y2 ... the voltage difference between the transparency electrode of Yn causes.Cause that in the addressing period method of address discharge is progressive scan mode and interlace mode.Progressive scan mode is the method for scan electrode of lining by line scan, and interlace mode is that scan electrode is divided into odd-numbered line Y1, Y3, Y5 ... With even number line Y2, Y4, Y6 ..., replace the scan mode that even number line scans after the scanning odd-numbered line earlier.Simultaneously, keep period and discharge time thereof and keep umber of pulse proportional, every sub-section is with 2
nThe ratio of (n=0,1,2,3,4,5,6,7) increases.The period of keeping of every like this sub-section changes, therefore the gray scale of ability display image.
Fig. 3 is the figure that is used for explaining the method for lining by line scan in complete white the demonstration.PDP input image replaces to the addressing ON/OFF value of addressing period through contrary gamma correction.As shown in Figure 3, when the input image be complete white, in the method for lining by line scan, addressing electrode OFF during ON end of scan of formation when the scanning beginning, so search switch be (low->high, high->low) twice.So switching current is little.
On the other hand, Fig. 4 is the method for lining by line scan in the capable OFF image demonstration of 1 row ON&1 in order to explain.As shown in Figure 4, when input picture was the capable OFF of 1 row ON&1, each guild carried out ON/OFF repeatedly when each row of addressing electrode was lined by line scan, and it is quite a lot of that the search switch number of times increases, so switching current can increase.That is, the high more addressing electrode of resolution increases the number of scanning lines also increases; Therefore, switching current also can increase.In addition, along with switching current increases, consumption electric power also can increase, and causes the operate as normal of the warming-up effect element of element, even surpasses the problem that the driving circuit shutdown can appear in its permissible range.
Summary of the invention
Technical matters
According to an aspect of the present invention; Its purpose is to provide a kind of driving method of plasma display panel; Addressing order or pressure through the input of change image reduce the search switch number of times, and reduce consumption electric power and prevent the image quality deterioration, and from the stoppage protection driving circuit.
The problem settling mode
The plasma display panel driving device that provides according to an aspect of the present invention; It comprises; With a plurality of addressing electrodes and a plurality of scan electrode that the matrix form is arranged, when scanning with progressive scan mode, above-mentioned a plurality of scan electrodes calculate first calculating part of above-mentioned addressing electrode switch number of times; Above-mentioned a plurality of scan electrode calculates second calculating part of above-mentioned addressing electrode switch number of times when scanning with interlace mode; Comparison portion, the switch number of times that switch number of times that more above-mentioned first calculating part calculates and above-mentioned second calculating part calculate, the less scan mode of determine switch number of times in progressive scan mode and interlace mode.
The driving method of plasma display panel that provides according to a further aspect in the invention; Comprise a plurality of addressing electrodes of matrix form arrangement and the drive method for plasma display panel of a plurality of scan electrodes, calculate the step a of above-mentioned addressing electrode switch number of times when scanning with progressive scan mode by above-mentioned a plurality of scan electrodes; Above-mentioned a plurality of scan electrode calculates the step b of above-mentioned addressing electrode switch number of times when scanning with interlace mode; And the switch number of times that the switch number of times that calculates of above-mentioned steps a and above-mentioned steps b calculate does comparison, selects the step c of the less scan mode of determine switch number of times in progressive scan mode and the interlace mode.
The effect of invention
According to driving method of plasma display panel provided by the invention, addressing order or pressure minimizing search switch number of times through the change input picture reduce consumption electric power thus, and prevent the image quality deterioration, and from shut down, protect driving circuit.
Description of drawings
Fig. 1 is the pie graph of existing plasma display.
Fig. 2 is the reference diagram of the principle of expression plasma display display image.
Fig. 3 is for the figure of the method for lining by line scan in complete white the demonstration is described.
Fig. 4 is for the figure of the method for lining by line scan in the capable OFF image demonstration of 1 row ON&1 is described.
Fig. 5 is the figure that illustrates driving method of plasma display panel according to embodiment.
Fig. 6 is the figure of the capable OFF image of diagram 2 row ON/1.
Fig. 7 is an addressing odd number addressing electrode in odd number section, for the not addressing of even number addressing electrode, and the figure of the capable OFF pattern of diagram 2 row ON/1 image.
Fig. 8 is an addressing even number addressing electrode in even number section, for the not addressing of odd number addressing electrode, and the figure of the capable OFF pattern of diagram 2 row ON/1 image.
Fig. 9 is the calcspar of system that shows the driving method of plasma display panel of one embodiment of the invention.
Figure 10 is the time diagram for the 2 row buffering cycles that 2 row buffering portions are described.
Figure 11 is for 2 row buffering results' calcspar is described.
Embodiment
With reference to the accompanying drawings, the preferred embodiments of the present invention carefully are described.
Fig. 5 is the figure according to embodiment of the invention diagram driving method of plasma display panel.Method shown in Figure 5 proposes with by way of example, and each step does not receive restraining of necessary its order.In addition, each step can be carried out some changes and correction according to the present invention.
Above-mentioned driving method; Basically; Import and predict the search switch number of times when image gets into, and decision selection progressive scan mode or interlace mode, even use is progressive scan mode or interlace mode; When the search switch number of times surpasses preset value, can force to reduce the method for search switch number of times in order to protect driving circuit.
With reference to Fig. 5, according to the PDP driving method of embodiments of the invention, calculate the search switch number of times of progressive scan mode S501 earlier, calculate the search switch number of times S502 of interlace mode again.
Below for calculating the method for search switch number of times.Comprise that relatively the gray-scale value of any row of image and next line calculates the method for search switch number of times.For progressive scan mode, the input gray level value of n row and n+1 row relatively when gap is big, can be predicted as the switch that taken place often.For interlace mode, compare the gray-scale value of n row and the gray-scale value of n+2 row, the unit that worthwhile gap is big.Here, the meaning that gap is big is, makes a mistake and gap more than the predefined critical value of user for fear of driving circuit.
In this way give an example, during 1 row ON/OFF pattern, if with the progressive scan mode addressing, scan addressing electrode at every turn and all exchange, this and panel scan electrode number are proportional.If resolution is that each electrode switch number of times of a sub-section is 768 times in 1024 * 768, the 1 row ON/OFF pattern of XGA level.A picture of one sub-section is 768 * 1024 (horizontal resolution) * 3RGB, when its frame with image is calculated, becomes sub-hop count multiple.
* 1 row ON/OFF pattern is used interlace mode, can reduce addressing period switch number of times, reduces consumption electric power.Give an example, 1 row ON/OFF pattern is at the bright lamp of odd-numbered line pixel, and under the situation of turning off the light in the even number line unit, suitable interlace mode at first can first odd-numbered line of addressing, and then the addressing even number line, so the exchange of addressing electrode can take place twice.
Opposite, 2 row ON/OFF patterns are different therewith.Use the interlace mode addressing with 2 row ON/OFF patterns, the effect of 1 row ON/OFF pattern can occur with the progressive scan mode addressing.With the interlace mode addressing, the search switch number of times is identical with vertical line number in this case, and with the progressive scan mode addressing, the search switch number of times is reduced to half the.
Return Fig. 5,, calculate search switch number of times and the search switch number of times S501 in the above-mentioned interlace mode in the above-mentioned progressive scan mode with above-mentioned record, behind the S502, search switch number of times S503 relatively.Afterwards, select the few mode S505 of result of calculation.Can reduce the search switch number of times in this way.Use the method for recording and narrating so far and generally just can reduce addressed exchange easily.But, only use the method, have addressed exchange and reduce situation of difficult, do explanation below this situation.
Fig. 6 is the figure of the capable OFF pattern of diagram 2 row ON/1 image.The switch number of times of the switch number of times of such image or its counter-rotating image during with the interlace mode addressing during with the progressive scan mode addressing is almost similar, and its switch number of times is quite a few.Give an example, XGA class resolution ratio 1024 * 768, under the situation of progressive scan mode or interlace mode addressing, addressing electrode switch number of times is 512 all similar, no matter uses any addressing method, addressed exchange is many, and electric current is also many.But as above the above for interlace mode or progressive scan mode, for the right image of addressed exchange, need minimize with image quality aggravation, the method for protection driving circuit.
Once more with reference to Fig. 5, present embodiment judges whether search switch number of times and the search switch number of times in the interlace mode in the S504 progressive scan mode has more preset value.In this case, when the search switch number of times surpasses predefined higher limit, that is,, under the situation about only can't resolve through the selective addressing mode, can force to reduce search switch number of times S506 as the capable OFF pattern of above-mentioned 2 row ON/1.
Above-mentioned predefined higher limit is meant, is input to the mistake that driving circuit can not cause driving circuit yet, can make the pre-set value of user of its steady operation.
In the present embodiment, the number of electrodes of addressing is selected a part in a sub-section, can reduce addressing addressing number.Give an example, the addressing electrode number selects each half the in a sub-section.
Fig. 7 and Fig. 8 select each half the accompanying drawing for the number of electrodes that addressing is described in a sub-section.With reference to Fig. 7 and Fig. 8, promptly as shown in Figure 7, an odd number section addressing odd number addressing electrode, the even number addressing electrode does not carry out addressing.Simultaneously, as shown in Figure 8, an addressing even number addressing electrode in the even number section, the odd number addressing electrode does not carry out addressing.Give an example, the first son section only shows odd electrode, and the second son section only shows even electrode then, and the 3rd son section only shows odd electrode, and the 4th son section only shows even electrode.Remaining son section also shows in the same way.
At this moment, in order to show the picture of nature, the unified weighted value that is provided with between the paired son section.In other words, the unified setting counted in keeping of the first son section and the second sub-section, and the number unification of keeping of the second sub-section and the 3rd sub-section is provided with.Not so, addressing odd electrode and even electrode brightness are different, thereby show the image of distorting.Like this, the address discharge number of times can reduce to half the in a sub-section, to such an extent as to reduce electric power.
Step S504 and step S506 be, to step S505, under the situation about only can't resolve through the selective addressing mode, execution can omitted or change to the step of optionally carrying out according to present embodiment, is not the step that must carry out at step S501.
Fig. 9 shows the system block diagrams of the driving method of PDP for according to embodiments of the invention for tool.As shown in Figure 9, the total system for the existing PDP driving method of the present invention of tool comprises: signal receiving part 901, driving circuit 900, time control part 906, storage control part 907, APL, gamma and weighted value correction portion 908 and data ordering portion 909.At this, driving circuit 900 comprises: 2 row buffering portions 902, data computation portion 903, interlaced data calculating part 904, comparison portion 905 line by line.
Above-mentioned signal receiving part 901 through the image data data of PDP video board input, that is, plays the effect that receives input image RGB data, and 2 row buffering portions 902 receive input image RGB data buffering 2 row.Carrying out 2 row bufferings is in order to generate 1 row buffering image and 2 row buffering images, to describe with reference to following Figure 10 and Figure 11.
Figure 10 is the time diagram of 2 row bufferings of explanation 2 row buffering portions.With reference to Figure 10,2 row buffering portions are divided into odd-numbered line data and even number of lines certificate importing image RGB data 1001 in advance.The even number of lines certificate is corresponding with line synchronizing signal 1002 odd number signals, is stored on the even number line storer 1003, and each line synchronizing signal 1002 reads the data that are stored in even number line storer 1003.The odd-numbered line data are stored on the odd-numbered line storer 1004 with line synchronizing signal 1002 corresponding butt joints, and each line synchronizing signal 1002 reads the data that are stored in odd-numbered line storer 1004.
Figure 11 is for 2 row buffering results' calcspar is described.With reference to Figure 11, input image RGB data 1001 are divided into odd-numbered line data 1005 and even number of lines is imported respectively on odd-numbered line storer and even number line storer according to 1006.
At this moment, when line synchronizing signal is even signal, the data 1010 of even number line storer 1003 output even numbers 2 row bufferings, the data 1007 of odd-numbered line storer 1004 output odd numbers 1 row buffering.In addition, when line synchronizing signal is the odd number signal, the data 1008 of odd-numbered line storer 1004 output odd numbers 2 row bufferings, the data 1009 of even number line storer 1004 output even numbers 1 row buffering.
That is, describe with reference to Figure 10 and Figure 11 once more, 1 row buffering image data is understood odd-numbered line storer 1004 in the even signal of line synchronizing signal, understands at even number line storer 1003 in the odd number signal.Therefore 1 row buffering image data 1001, forms the image that postpones 1 row compared with input image RGB data 1001 during from line synchronizing signal 2.
Simultaneously, 2 row buffering image datas are understood even number line storer 1003 in the even signal of line synchronizing signal, understand at odd-numbered line storer 1004 in the odd number signal.Therefore 2 row buffering image datas, form the image that postpones 2 row compared with input image RGB data 1001 during from line synchronizing signal 3.
Return Fig. 9 and describe, the image data of 1 row buffering is input to line by line that the image data of data computation portion 903,2 row bufferings is input to interlaced data calculating part 904.
When data computation portion 903 is with the progressive scan mode addressing line by line, calculate the switch number of times of addressing electrode generally.Want accurate prediction, the sub-segment data through weighted value is proofreaied and correct can compare respectively every sub-section.The RGB image data and the 1 row buffering image data value of input are calculated when the data value gap exceeds pre-set critical value first.Only calculating the reason that exceeds pre-set critical value is, is applicable to the present invention in order only to make the special image that causes a lot of search switch number of times.In addition, the picture of XGA resolution 1024 * 768 is given an example, and calculated value is 768 for the maximum switch number of times of each addressing electronics, and number of electrodes is 1024 * 3 (RGB), and therefore, calculated maximum possibly be 768 * 1024 * 3.
Interlaced data calculating part 904 calculates the switch number of times of addressing electrode during with the interlace mode addressing generally.The RGB image data and the 2 row buffering image datas of input are done comparison first, when the data value gap exceeds pre-set critical value, calculate.
Switch number of times that comparison portion 905 can calculate in data computation portion 903 line by line and the switch number of times that calculates with interlaced data calculating part 904 with compare, select little value addressing mode.Give an example, generate the signal of " 0 " under switch number of times of calculating with progressive scan mode and the little situation, generate the signal of " 1 " under switch number of times of calculating with interlace mode and the little situation.Its decision signal is input to the time controller 906 of gated sweep electrode and memory controller 907 according to the scanning sequency array data.
If in the value that the value of calculating with progressive scan mode and interlace mode are calculated, smaller value is pre-set higher limit generation addressed block signal when above.Little value is more than the pre-set higher limit, even if be meant that with progressive scan mode or interlace mode work all can be the image that causes a lot of addressed exchange, so in this case, is necessary to force to reduce the addressing electrode number.The addressed block signal was " 1 " when the little value relatively exceeded pre-set higher limit, otherwise was " 0 ".
The addressed block signal is input to the value of APL, gamma and weighted value correction portion change APL, gamma and weighted value.In case decision is kept several APL correction portion addressed block signals and got into, make to have the number of keeping that forms an antithetical phrase section.In weighted value correction portion, paired son section is selected the identical weighted value table of weighted value each other.The gamma table corresponding with relevant weighted value selected by gamma correction portion.
In data addressing 909, addressed block signal " 1 " gets into, and corresponding son section is " 0 " with the addressing electrode data processing.Promptly; Give an example; Common image normal process data when the addressed block signal is " 0 "; If if the addressed block signal that gets into is treated to " 0 " for the even number address data in " 1 " odd number section, the odd number address data in the even number section is treated to " 0 ", let son the half the of picture of only working in section period one-period.The search switch number of times is the input entering ending state of an image data when finally being calculated, and therefore, when next frame shows, carries out the work that addressing electrodes stop in data addressing portion 909.
More than be diagram and explanation embodiments of the invention; But technological thought of the present invention is not limited to accompanying drawing and above-mentioned description; The possibility of variform transformation is the fact that obtains easily the person of ordinary skill in the field in not exceeding thought range of the present invention, and such form transformation can be regarded as in the scope of spirit of the present invention, belonging to patent request scope of the present invention.
Claims (7)
1. plasma display panel driving device, it comprises, and a plurality of addressing electrodes and a plurality of scan electrode so that the matrix form is arranged is characterized in that,
When scanning with progressive scan mode, above-mentioned a plurality of scan electrode calculates first calculating part of above-mentioned addressing electrode switch number of times;
Above-mentioned a plurality of scan electrode calculates second calculating part of above-mentioned addressing electrode switch number of times when scanning with interlace mode;
Comparison portion, the switch number of times that switch number of times that more above-mentioned first calculating part calculates and above-mentioned second calculating part calculate, the less scan mode of determine switch number of times in progressive scan mode and interlace mode.
2. plasma display panel driving device according to claim 1; It is characterized in that; Also comprise inhibition portion; The switch number of times that the switch number of times that calculates at said first calculating part and said second calculating part calculate is predefined higher limit when above, said inhibition portion minimizing switch number of times.
3. driving method of plasma display panel according to claim 1 is a plurality of addressing electrodes of matrix form arrangement and the drive method for plasma display panel of a plurality of scan electrodes, it is characterized in that, may further comprise the steps:
Calculate the step (a) of above-mentioned addressing electrode switch number of times when scanning with progressive scan mode by above-mentioned a plurality of scan electrodes;
Above-mentioned a plurality of scan electrode calculates the step (b) of above-mentioned addressing electrode switch number of times when scanning with interlace mode; And
The switch number of times that switch number of times that above-mentioned steps (a) is calculated and above-mentioned steps (b) are calculated is done comparison, selects the step (c) of the less scan mode of determine switch number of times in progressive scan mode and the interlace mode.
4. driving method of plasma display panel according to claim 3; It is characterized in that; The switch number of times that the switch number of times that calculates in said step (a) and said step (b) are calculated is predefined higher limit when above, also comprises the step (d) of minimizing switch number of times.
5. driving method of plasma display panel according to claim 4 is characterized in that, said step (d) also comprises, in each son section, selects the step of a part of addressing electrode number.
6. driving method of plasma display panel according to claim 3; It is characterized in that; Said step (a) does; The RGB image data and the 1 row buffering image data value of input first are that pre-set critical value is calculated when above at the data value difference, and calculate the switch number of times of addressing electrode.
7. driving method of plasma display panel according to claim 3; It is characterized in that; Said step (b) does; The RGB image data and the 2 row buffering image data values of input first are that pre-set critical value is calculated when above at the data value difference, and calculate the switch number of times of addressing electrode.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020090131067A KR101445338B1 (en) | 2009-12-24 | 2009-12-24 | Apparatus and method for driving plasma display panel |
| KR10-2009-0131067 | 2009-12-24 | ||
| PCT/KR2010/008607 WO2011078493A2 (en) | 2009-12-24 | 2010-12-03 | Drive device and method for a plasma display panel |
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| CN102714008A true CN102714008A (en) | 2012-10-03 |
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| CN201080061101XA Pending CN102714008A (en) | 2009-12-24 | 2010-12-03 | Drive device and method for a plasma display panel |
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| KR (1) | KR101445338B1 (en) |
| CN (1) | CN102714008A (en) |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103021324A (en) * | 2012-12-25 | 2013-04-03 | 四川虹微技术有限公司 | Pixel scanning method of plasma display panel |
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| KR100612347B1 (en) * | 2004-11-09 | 2006-08-16 | 삼성에스디아이 주식회사 | Plasma display device and driving method thereof |
| CN100392706C (en) * | 2004-02-19 | 2008-06-04 | 三星Sdi株式会社 | Apparatus for driving plasma display panel and method for displaying pictures on plasma display panel |
| US7450089B2 (en) * | 2003-09-02 | 2008-11-11 | Samsung Sdi Co., Ltd. | Plasma display panel and method for driving the same |
| US20090135099A1 (en) * | 2007-11-28 | 2009-05-28 | Hyungu Heo | Plasma display device and driving method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060024215A (en) * | 2004-09-13 | 2006-03-16 | 엘지전자 주식회사 | Method and apparatus for controlling data of plasma display panel |
| JP5152184B2 (en) | 2008-01-31 | 2013-02-27 | パナソニック株式会社 | Plasma display device |
-
2009
- 2009-12-24 KR KR1020090131067A patent/KR101445338B1/en not_active IP Right Cessation
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2010
- 2010-12-03 WO PCT/KR2010/008607 patent/WO2011078493A2/en active Application Filing
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7450089B2 (en) * | 2003-09-02 | 2008-11-11 | Samsung Sdi Co., Ltd. | Plasma display panel and method for driving the same |
| CN100392706C (en) * | 2004-02-19 | 2008-06-04 | 三星Sdi株式会社 | Apparatus for driving plasma display panel and method for displaying pictures on plasma display panel |
| CN1744172A (en) * | 2004-08-30 | 2006-03-08 | 三星Sdi株式会社 | Display and method for driving a display |
| KR100612347B1 (en) * | 2004-11-09 | 2006-08-16 | 삼성에스디아이 주식회사 | Plasma display device and driving method thereof |
| US20090135099A1 (en) * | 2007-11-28 | 2009-05-28 | Hyungu Heo | Plasma display device and driving method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103021324A (en) * | 2012-12-25 | 2013-04-03 | 四川虹微技术有限公司 | Pixel scanning method of plasma display panel |
| CN103021324B (en) * | 2012-12-25 | 2016-01-27 | 四川虹微技术有限公司 | The pixel scan method of plasma display |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20110074171A (en) | 2011-06-30 |
| KR101445338B1 (en) | 2014-10-01 |
| WO2011078493A2 (en) | 2011-06-30 |
| WO2011078493A3 (en) | 2011-10-20 |
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